Results 1 to 10 of about 517,280 (335)
Wavelets and Lattice Field Theory. [PDF]
EPJ Web of Conferences, 2018 When continuous fields are expanded in a wavelet basis, a D-dimensional continuum action becomes a (D+1)-dimensional lattice action on the naively discretized Poincare-patch coordinates of an Euclidean AdS(D+1).
Neuberger Herbert
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Real-time spin systems from lattice field theory [PDF]
Journal of High Energy Physics, 2023 We construct a lattice field theory method for computing the real-time dynamics of spin systems in a thermal bath. This is done by building on previous work of Takano with Schwinger-Keldysh and functional differentiation techniques. We derive a Schwinger-
Neill C. Warrington
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An alternative lattice field theory formulation inspired by lattice supersymmetry
Journal of High Energy Physics, 2017 We propose an unconventional formulation of lattice field theories which is quite general, although originally motivated by the quest of exact lattice supersymmetry. Two long standing problems have a solution in this context: 1) Each degree of freedom on
Alessandro D’Adda +2 more
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A Gentle Introduction to Lattice Field Theory [PDF]
EntropyThe principles of Lattice Field Theory (LFT), in particular Lattice Gauge Theory (LGT), are explained for a nonspecialist audience. We describe some of the successes of the program; we also discuss the relationship between LFT and Quantum Cellular ...
Erhard Seiler
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Field Theory on a Supersymmetric Lattice [PDF]
Communications in Mathematical Physics, 1995 A lattice-type regularization of the supersymmetric field theories on a supersphere is constructed by approximating the ring of scalar superfields by an integer-valued sequence of finite dimensional rings of supermatrices and by using the differencial ...
Grosse, H., Klimcik, C., Presnajder, P.
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An Alternative Lattice Field Theory Formulation Inspired by Lattice Supersymmetry-Summary of the Formulation- [PDF]
EPJ Web of Conferences, 2018 We propose a lattice field theory formulation which overcomes some fundamental diffculties in realizing exact supersymmetry on the lattice. The Leibniz rule for the difference operator can be recovered by defining a new product on the lattice, the star ...
D’Adda Alessandro +2 more
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Higgs-Yukawa Model in Chirally Invariant Lattice Field Theory [PDF]
Advances in High Energy Physics, 2013 Nonperturbative numerical lattice studies of the Higgs-Yukawa sector of the standard model with exact chiral symmetry are reviewed. In particular, we discuss bounds on the Higgs boson mass at the standard model top quark mass and in the presence of heavy
John Bulava +8 more
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Lattice Field Theory with the Sign Problem and the Maximum Entropy Method [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2007 Although numerical simulation in lattice field theory is one of the most effective tools to study non-perturbative properties of field theories, it faces serious obstacles coming from the sign problem in some theories such as finite density QCD and ...
Masahiro Imachi +2 more
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Implementing the three-particle quantization condition for π + π + K + and related systems
Journal of High Energy Physics, 2022 Recently, the formalism needed to relate the finite-volume spectrum of systems of nondegenerate spinless particles has been derived. In this work we discuss a range of issues that arise when implementing this formalism in practice, provide further ...
Tyler D. Blanton +2 more
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Lattice improvement in lattice effective field theory [PDF]
The European Physical Journal A, 2018 Lattice calculations using the framework of effective field theory have been applied to a wide range few-body and many-body systems. One of the challenges of these calculations is to remove systematic errors arising from the nonzero lattice spacing. Fortunately, the lattice improvement program pioneered by Symanzik provides a formalism for doing this ...
Klein, Nico, Lee, Dean, Meissner, Ulf-G.
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